Who thought a person could have so much trouble with 4 wires....I pulled the harness from the fire wall to the tail of the truck out and checked for ground spots...and found them to be plentiful. So I re-wired it front to back, and in the process got rid of the old fuel pump harness and a couple of extra plugs at the firewall connection spot under the booster. All in all much cleaner now. I was ready for a win, but then after no right tail signals again, I found the tail light harness had issues too. No biggie...I swapped it for the spare one I had from one of the donors, and wouldn't you know...same problem. What are the odds of that. Both harness had issues right at the plug, one broken wire, and the other bad terminal corrosion. I have the fix for it now, but wow...what a pain.
On the plus side, this forced a couple of other items to get finished. I stripped and finished detailing the frame under the cab, so that looks nice now. The e-brake cables are re-attached, but one or both need to be replaced as the don't retract well. The 454ss mirrors are painted to match now, and I started sectioning the roll pan to fit it properly. I also ran wires to the reverse sensor on the trans, so hopefully after the harness fiasco, this gets put to bed.
Since I was burning the midnight oil, I took a cool gauge picture while having a sit and pondering.